'''
    可视化配置文件
'''
import matplotlib
import matplotlib.pyplot as plt
import numpy as np

def plot(self):
    # 绘图示例方法
    
    t = np.arange(0.0, 2.0, 0.01)
    s = 1 + np.sin(2 * np.pi * t)

    fig, ax = plt.subplots()
    ax.plot(t, s)

    ax.set(xlabel='time (s)', ylabel='voltage (mV)',
        title='About as simple as it gets, folks')
    ax.grid()

    fig.savefig("test.png")
    plt.show()
